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Stabilized energetic water-in-oil emulsion composition

a technology of energetic water in oil and composition, applied in the direction of weapons, non-explosive fillers/gelling/thickening agents, explosives, etc., can solve the problems of affecting the performance of emulsions, adding further internal stress to the emulsion, and affecting the composition performan

Inactive Publication Date: 2005-08-16
THE LUBRIZOL CORP
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A significant quality issue in this area of technology is maintenance of performance of the compositions over extended periods of time.
Performance of the emulsions can be adversely affected if precautions are not taken to insure stability of the emulsion.
These materials tend to add further internal stress to the emulsion.
Improved surfactants and coating agents have led to improved shelf life, but the issue has not been satisfactorily resolved in all cases, especially in the case of high performance compositions.

Method used

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  • Stabilized energetic water-in-oil emulsion composition
  • Stabilized energetic water-in-oil emulsion composition

Examples

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example

[0084]The following example illustrates an emulsion composition of this invention and means for preparing it. This example is intended to be illustrative only and is not intended to limit the scope of the invention. Unless indicated otherwise, all parts are parts by weight and temperatures are in degrees Celsius. All analytical values are by analysis.

[0085]An aqueous component containing 81.25 parts ammonium nitrate, 19.50 parts tap water and 0.25 parts Zn(NO3)2, is heated with mixing to 71° C. An organic component containing 1.35 parts of a 52% in mineral oil solution of a half-ester salt, half amide ester prepared by reacting polyisobutenyl ({overscore (M)}n) substituted succinic anhydride with diethanol amine (the emulsifier), 0.7 parts sorbitan monooleate (co-emulsifier), 0.5 parts dioctyl adipate, 0.5 parts maleinated polybutadiene (LUCANT 6020H) and 3.35 parts diesel fuel oil is also heated with mixing to 71° C. The aqueous component (96.4 parts) is poured, with mixing over 2 ...

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Abstract

A stabilized water-in-oil energetic emulsion composition comprising a) an aqueous oxidizer phase comprising at least one oxygen supplying component; b) an organic phase comprising at least one organic fuel; c) an emulsifying amount of at least one emulsifying agent suitable for forming a water-in-oil emulsion; and d) an emulsion stabilizer comprising a hydrocarbon polymer, said hydrocarbon polymer having {overscore (M)}n ranging from about 2,000 to about 6,000, provided that said emulsion composition is essentially free of any polyvalent inorganic agent that is capable of cross-linking with the emulsifying agent or the emulsion stabilizer.

Description

[0001]This application claims benefit of provisional application 60 / 245,339 filed Nov. 2, 2000.FIELD OF THE INVENTION[0002]This invention relates to stabilized water-in-oil emulsion compositions, and more particularly to stabilized energetic water-in-oil emulsions comprising a continuous organic phase, a discontinuous aqueous phase, emulsifiers, and a hydrocarbon polymer, said compositions having improved storage stability.BACKGROUND OF THE INVENTION[0003]Emulsion explosives have become an increasingly important product offering in commercial mining, quarrying and construction as well as providing potential benefits to the military. A significant quality issue in this area of technology is maintenance of performance of the compositions over extended periods of time.[0004]Explosives, propellants and munitions often are stored for extended periods of time under a wide variety of conditions, e.g., temperature, humidity, etc. Performance of the emulsions can be adversely affected if pre...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): C06B45/00C06B47/00C06B47/14C06B23/00
CPCC06B23/001C06B45/00C06B47/145
Inventor MULLAY, JOHN J.POLLACK, ROBERT A.
Owner THE LUBRIZOL CORP
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